5 
1 
2 Thunderbolt Display Power Supply Buzzing
Think it may be a transformer, caps look ok. Happens most when under load (magsafe and Thunderbolt connected to Mac) but buzzing will start if display is left plugged in overnight.
Anyone else experienced this?
I am hoping to repair instead of replace the power supply.
Update (12/15/2018)
Per this video:
https://www.youtube.com/watch?v=7sPd6vfR...
"you can fix that by changing the suppression capacitor its a 0,22 uf marked as a 22k275v x2 mine was a carli orange i changed it by one with wires the store told me it is beter to prevent buzzing in belgium it only costs 0,75 cent a lot less than a new psu"
I changed the cap and everything seems good so far! :)
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